Japan Weather Forecast
Japan weather: 91°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Japan
Derived from the current forecast window - not an official warning.
Peak gusts of 25 mph and 2 thunderstorm days in the next 16 days.
Wettest single day forecast at 0,5 in, 2,0 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day forecast for Japan
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Mon, Aug 24 | ☁️ Overcast | 91° / 75° | 100% | 5 mph | 8 |
| Tue, Aug 25 | 🌤️ Mainly clear | 93° / 76° | 8% | 4 mph | 8 |
| Wed, Aug 26 | ☁️ Overcast | 91° / 78° | 76% | 4 mph | 8 |
| Thu, Aug 27 | 🌦️ Light drizzle | 90° / 78° | 53% · 0,0 in | 10 mph | 4 |
| Fri, Aug 28 | 🌦️ Drizzle | 87° / 72° | 75% · 0,1 in | 3 mph | 7 |
| Sat, Aug 29 | 🌦️ Drizzle | 82° / 71° | 55% · 0,1 in | 6 mph | 4 |
| Sun, Aug 30 | 🌦️ Light showers | 85° / 70° | 51% · 0,4 in | 7 mph | 7 |
| Mon, Aug 31 | ⛈️ Thunderstorm | 89° / 77° | 33% · 0,3 in | 5 mph | 6 |
| Tue, Sep 1 | 🌦️ Drizzle | 84° / 76° | 45% · 0,3 in | 5 mph | 7 |
| Wed, Sep 2 | 🌤️ Mainly clear | 91° / 78° | 55% | 6 mph | 6 |
| Thu, Sep 3 | 🌦️ Light drizzle | 90° / 76° | 47% · 0,0 in | 5 mph | 1 |
| Fri, Sep 4 | ⛈️ Thunderstorm | 85° / 74° | 42% · 0,3 in | 7 mph | 1 |
| Sat, Sep 5 | 🌦️ Light drizzle | 81° / 72° | 55% · 0,0 in | 6 mph | 1 |
| Sun, Sep 6 | 🌦️ Light drizzle | 84° / 71° | 42% · 0,1 in | 9 mph | 7 |
| Mon, Sep 7 | 🌦️ Light drizzle | 90° / 78° | 58% · 0,0 in | 9 mph | 5 |
| Tue, Sep 8 | 🌦️ Light showers | 79° / 73° | 33% · 0,5 in | 11 mph | 1 |
What this means for Japan
Today is about average for August. The forecast high of 91°F is in line with the 93°F typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 75°F.
See the Japan forecast by time range
Japan weather - more answers
Explore Japan
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Japan?
Japan is a country in Asia. Its coordinates are 35.6762, 139.6503. It lies in Asia.
What is the weather like in Japan right now?
It is currently 91°F (33°C) with mainly clear. Humidity is 64% and wind is 4 mph.
When is the best time to visit Japan?
July, August, October and November offer the most comfortable conditions in Japan, which has a continental climate. February, March and June are usually the hardest months for outdoor plans.
What time zone is Japan in?
Japan observes Asia/Tokyo (UTC+09:00). The local time is 6:22 AM.
How many people live in Japan?
Japan has a population of approximately 124 million.
What is the nearest airport to Japan?
The closest airports are Tokyo Haneda Airport (HND), 11 mi away, Narita International Airport (NRT), 42 mi away and Kansai International Airport (KIX), 264 mi away.
What are the top things to do in Japan?
Popular options include Fushimi Inari Taisha, Mount Fuji, Senso-ji Temple, Shibuya Crossing, Fujisan, Sacred Place and Source of Artistic Inspiration and Himeji-jo.
What places are in Japan?
Japan covers 11 places in this atlas, including Osaka, Tokyo, Mount Fuji, Narita International Airport, Fujisan, Sacred Place and Source of Artistic Inspiration and Himeji-jo.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (countries-v1) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 25, 2026 at 6:22 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
